Extension Spring: OD 0.25 in, FL 1.375 in, Music WireStandard Extension Series (inch)Selection to Match Your Needs Lee Spring LE 029C 04 M is a precision extension spring from the Standard Extension Series (inch), engineered for applications requiring reliable quality extension springs. This spring features a 0.25-inch outside diameter (6.35 mm) with 0.192-inch loop inside diameter (4.88 mm) and extends from a free length of 1.375 inch (34.93 mm) to a maximum extended length of 2.665 inch (67.69 mm). Made from Music Wire with a 0.029-inch wire diameter (0.74 mm), the spring delivers a spring rate of 2.9 lb/inch (0.508 N/mm) through its 33.9 total coils with an initial tension of 0.55 lb (2.447 N). The spring supports a maximum load of 4.3 lb (19.127 N) at full extension with a body length of 0.991 inch (25.17 mm). The spring features Random loop position and Zinc Plate and Bake per ASTM B633 finish for optimal performance. Extension Springs: Standard SeriesThe Lee Spring Standard Extension Spring Series includes a wide range of size and rate combinations and in both inch and metric sizes. Standard Series springs are available in Music Wire, Type 302 Stainless Steel and Type 316 Stainless Steel. Metric Series springs are available in Music Wire and Type 302 Stainless Steel. The Music Wire springs are provided with a plating finish for light corrosion resistance. The Type 302 Stainless Steel springs are passivated, while Type 316 Stainless Steel springs are passivated and ultrasonically cleaned. Lee Spring's Stock Extension Springs are supplied with full diameter loops (either to machine or crossover center style) at a random position with the exception of Metric Extension Springs which are specified to meet DIN Standards. Loop openings are approximately one wire diameter and the direction of wind is factory optional. Standard Extension Series (inch) Extension Springs have useful applications in various industries, including:
...and many more applications 244191
Product
Extension OD 0.25 in, Length 1.375 in, Music Wire
Product
Extension OD 6.35 mm, Length 34.93 mm, Music Wire
Part Number
LE 029C 04 M
Series
Standard Extension Series (inch)
Outside Diameter (inch)
0.25
Outside Diameter (cm)
0.635
Outside Diameter (mm)
6.35
Wire Diameter (inch)
0.029
Wire Diameter (cm)
0.074
Wire Diameter (mm)
0.74
Max Load (gm)
1950.5
Max Load (lb)
4.3
Max Load (kg)
1.9505
Max Load (N)
19.127
Rate (gm/cm) 518
Rate (gm/mm) 51.8
Rate (kg/cm) 0.518
Rate (kg/mm) 0.0518
Rate (lb/in) 2.9
Rate (N/cm) 5.08
Rate (N/mm) 0.508
Max Extended Length (cm) 6.769
Max Extended Length (in) 2.665
Max Extended Length (mm)
67.69
Initial Tension (gm)
249.5
Initial Tension (kg):
0.2495
Initial Tension (lb)
0.55
Initial Tension (N)
2.447
Free Length (cm)
3.493
Free Length (inch) 1.375
Free Length (mm) 34.93
Material Music Wire
Loop Inside Diameter (cm) 0.488
Loop Inside Diameter (in) 0.192
Loop Inside Diameter (mm) 4.88
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.029
0.25
0.005
1.375
0.035
33.9
0.55
0.11
2.9
0.29
2.665
4.3
0.029
0.991
Random
0.25
0.005
1.375
0.035
33.9
0.55
0.11
2.9
0.29
2.665
4.3
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| Quantity | Price |
|---|---|
| 1 - 19 | $8.570 |
| 20 - 49 | $5.170 |
| 50 - 99 | $2.720 |
| 100 - 199 | $1.690 |
| 200 - 299 | $1.465 |
| 300 - 399 | $1.397 |
| 400 - 499 | $1.338 |
| 500 - 599 | $1.286 |
| 600 - 699 | $1.237 |
| 700 - 799 | $1.199 |
| 800 - 899 | $1.166 |
| 900 - 999 | $1.137 |
| 1000 | $1.120 |
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